blob: 4468df6f1c791c346f1ed571d00f370e14a8ad5d [file] [log] [blame]
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001+++++++++++
2Python News
3+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Petersond1735892009-03-07 18:46:21 +00007What's New in Python 3.1 alpha 2?
8=================================
9
10*Release date: XXX*
11
12Core and Builtins
13-----------------
14
Antoine Pitrou652e7072009-03-13 19:25:20 +000015- Issue #5392: when a very low recursion limit was set, the interpreter would
16 abort with a fatal error after the recursion limit was hit twice.
17
Benjamin Petersond1735892009-03-07 18:46:21 +000018Library
19-------
20
21
Benjamin Petersona58a6262009-03-07 16:34:40 +000022What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +000023================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +000024
Benjamin Petersona58a6262009-03-07 16:34:40 +000025*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +000026
27Core and Builtins
28-----------------
29
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +000030- The io module has been reimplemented in C for speed.
31
Raymond Hettingerb0d56af2009-03-03 10:52:49 +000032- Give dict views an informative __repr__.
33
Eric Smith5e5c0db2009-02-20 14:25:03 +000034- Issue #5247: Improve error message when unknown format codes are
35 used when using str.format() with str, int, and float arguments.
36
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +000037- Issue #5249: time.strftime returned malformed string when format string
38 contained non ascii character on windows.
39
Benjamin Petersonf5b52242009-03-02 23:31:26 +000040- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
41 source has already been decoded into str.
42
Antoine Pitrou79eee6b2009-02-13 14:01:05 +000043- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
44 rotating the object pointer by 4 bits to the right.
45
Mark Dickinson87ec0852009-02-09 17:15:59 +000046- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
47 it now forces its argument to double before testing for infinity.
48
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +000049- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
50 returns a non-number type.
51
Benjamin Peterson87618552009-02-08 15:00:52 +000052- Issue #5182: Removed memoryview.__str__.
53
Mark Dickinsonc008a172009-02-01 13:59:22 +000054- Issue #1717: Removed builtin cmp() function, dropped tp_compare
55 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +000056 the type definition cmpfunc. The tp_compare slot has been renamed
57 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +000058
Raymond Hettingere8364232009-02-02 22:55:09 +000059- Issue 1242657: the __len__() and __length_hint__() calls in several tools
60 were suppressing all exceptions. These include list() and bytearray().
61
Mark Dickinson1124e712009-01-28 21:25:58 +000062- Issue #4707: round(x, n) now returns an integer if x is an integer.
63 Previously it returned a float.
64
Antoine Pitroub52ec782009-01-25 16:34:23 +000065- Issue #4753: By enabling a configure option named '--with-computed-gotos'
66 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
67 evaluation loop is compiled with a new dispatch mechanism which gives
68 speedups of up to 20%, depending on the system, on various benchmarks.
69
Antoine Pitrou81fabdb2009-01-22 10:11:36 +000070- Issue #4874: Most builtin decoders now reject unicode input.
71
Mark Dickinson9ffc0202009-01-20 20:45:53 +000072- Issue #4842: Don't allow trailing 'L' when constructing an integer
73 from a string.
74
Benjamin Peterson05e782f2009-01-19 15:15:02 +000075- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
76
Antoine Pitroue4bc7f62009-01-17 21:06:43 +000077- Issue #4838: When a module is deallocated, free the memory backing the
78 optional module state data.
79
Mark Dickinson8055afd2009-01-17 10:04:45 +000080- Issue #4910: Rename nb_long slot to nb_reserved, and change its
81 type to (void *).
82
Antoine Pitrou8d4e5052009-01-13 22:59:11 +000083- Issue #4935: The overflow checking code in the expandtabs() method common
84 to str, bytes and bytearray could be optimized away by the compiler, letting
85 the interpreter segfault instead of raising an error.
86
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +000087- Issue #3720: Fix a crash when an iterator modifies its class and removes its
88 __next__ method.
89
Mark Dickinsone5e298f2009-01-12 20:49:19 +000090- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
91 function no longer attempt to call the __long__ slot to convert an object
92 to an integer. Only the __int__ and __trunc__ slots are examined.
93
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +000094- Issue #4893: Use NT threading on CE.
95
Martin v. Löwisec59d042009-01-12 07:59:10 +000096- Issue #4915: Port sysmodule to Windows CE.
97
Antoine Pitrouab868312009-01-10 15:40:25 +000098- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
99 common cases are optimized thanks to a dedicated fast path and a moderate
100 amount of loop unrolling.
101
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000102- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
103 collecting the oldest generation) so that allocating lots of objects without
104 destroying them does not show quadratic performance. Based on a proposal by
105 Martin von Löwis at
106 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
107
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000108- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000109 having been closed (for instance, a read() call could return some
110 previously buffered data). Patch by Dmitry Vasiliev.
111
Antoine Pitrou05608432009-01-09 18:53:14 +0000112- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
113 flag to work properly. Furthermore, when specifying -u, the text stdout
114 and stderr streams have line-by-line buffering enabled (the default being
115 to buffer arbitrary chunks of data).
116
Raymond Hettinger35631532009-01-09 03:58:09 +0000117- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
118 instead of ints (reducing its size from 4 to 8 times thereby reducing
119 Python's overall memory).
120
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000121- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
122 an existing .py counterpart, override the co_filename attributes of all
123 code objects if the original filename is obsolete (which can happen if the
124 file has been renamed, moved, or if it is accessed through different paths).
125 Patch by Ziga Seilnacht and Jean-Paul Calderone.
126
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000127- Issue #4580: Fix slicing of memoryviews when the item size is greater than
128 one byte. Also fixes the meaning of len() so that it returns the number of
129 items, rather than the size in bytes.
130
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000131- Issue #4075: Use OutputDebugStringW in Py_FatalError.
132
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000133- Issue #4747: When the terminal does not use utf-8, executing a script with
134 non-ascii characters in its name could fail with a "SyntaxError: None" error.
135
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000136- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000137 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000138
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000139- Issue #3680: Reference cycles created through a dict, set or deque iterator
140 did not get collected.
141
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000142- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
143 where the tp_hash and tp_dict slots are both NULL.
144
Georg Brandlccc47b62008-12-28 11:44:14 +0000145- Issue #4759: None is now allowed as the first argument of
146 bytearray.translate(). It was always allowed for bytes.translate().
147
Skip Montanaro80072cb2008-12-23 03:51:14 +0000148- Added test case to ensure attempts to read from a file opened for writing
149 fail.
150
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000151- Issue #3106: Speedup some comparisons (str/str and int/int).
152
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000153- Issue #2183: Simplify and optimize bytecode for list, dict and set
154 comprehensions. Original patch for list comprehensions by Neal Norwitz.
155
Antoine Pitrou621601a2008-12-17 23:18:19 +0000156- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
157 print elapsed times, not only when some objects are uncollectable /
158 unreachable. Original patch by Neil Schemenauer.
159
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000160- Issue #3439: Add a bit_length method to int.
161
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000162- Issue #2173: When getting device encoding, check that return value of
163 nl_langinfo is not the empty string. This was causing silent build
164 failures on OS X.
165
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000166- Issue #4597: Fixed several opcodes that weren't always propagating
167 exceptions.
168
169- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000170 context manager returns a value that cannot be converted to a bool.
171
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000172- Issue #4445: Replace "sizeof(PyBytesObject)" with
173 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
174 bytes instances. On a typical machine this saves 3 bytes of memory
175 (on average) per allocation of a bytes instance.
176
Christian Heimesa872de52008-12-05 08:26:55 +0000177- Issue #4533: File read operation was dreadfully slow due to a slowly
178 growing read buffer. Fixed by using the same growth rate algorithm as
179 Python 2.x.
180
Antoine Pitrou5504e892008-12-06 21:27:53 +0000181- Issue #4509: Various issues surrounding resize of bytearray objects to
182 which there are buffer exports (e.g. memoryview instances).
183
Georg Brandlf9734072008-12-07 15:30:06 +0000184- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
185 method on file objects with closefd=False. The file descriptor is still
186 kept open but the file object behaves like a closed file. The ``FileIO``
187 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000188
Antoine Pitroubc420402008-12-07 20:14:49 +0000189- Issue #4569: Interpreter crash when mutating a memoryview with an item size
190 larger than 1.
191
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000192- Issue #4748: Lambda generators no longer return a value.
193
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000194- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
195
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000196Library
197-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000198
Tarek Ziadé516db942009-03-11 12:52:00 +0000199- Issue #5472: Fixed distutils.test_util tear down. Original patch by
200 Tim Golden.
201
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000202- collections.deque() objects now have a read-only attribute called maxlen.
203
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000204- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
205 it is has been populated and properly configured in order to prevent
206 window flashing.
207
Guilherme Polo56f5be52009-03-07 01:54:57 +0000208- Issue #4792: Prevent a segfault in _tkinter by using the
209 guaranteed to be safe interp argument given to the PythonCmd in place of
210 the Tcl interpreter taken from a PythonCmd_ClientData.
211
212- Issue #5193: Guarantee that tkinter.Text.search returns a string.
213
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000214- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
215 Original patch by Akira Kitada.
216
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000217- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
218
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000219- Issue #5385: Fixed mmap crash after resize failure on windows.
220
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000221- Issue #5179: Fixed subprocess handle leak on failure on windows.
222
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000223- PEP 372: Added collections.OrderedDict().
224
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000225- The _asdict() for method for namedtuples now returns an OrderedDict().
226
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000227- configparser now defaults to using an ordered dictionary.
228
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000229- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
230 import guess_extension`` was used.
231
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000232- Issue #1733986: Fixed mmap crash in accessing elements of second map object
233 with same tagname but larger size than first map. (Windows)
234
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000235- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
236 overrun.
237
Tarek Ziadéf0721222009-02-28 10:16:43 +0000238- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
239 bdist_rpm command.
240
241- Issue #5378: added --quiet option to Distutils bdist_rpm command.
242
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000243- Issue #5052: make Distutils compatible with 2.3 again.
244
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000245- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
246 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000247
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000248- Issue #5287: Add exception handling around findCaller() call to help out
249 IronPython.
250
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000251- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
252 The file was resized to wrong size.
253
254- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
255
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000256- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000257 from the package_data and the data_files metadata.
258
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000259- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000260 support.TempdirManager, to avoid writing in the tests directory.
261
Tarek Ziadé68c50952009-02-13 23:04:17 +0000262- Issue #4524: distutils build_script command failed with --with-suffix=3.
263 Initial patch by Amaury Forgeot d'Arc.
264
Tarek Ziadé811d6242009-02-13 22:26:15 +0000265- Issue #2461: added tests for distutils.util
266
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000267- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
268 which inherited from numbers.py which did not have __slots__ defined. The
269 numbers hierarchy now has its own __slots__ declarations.
270
Antoine Pitroub353c122009-02-11 00:39:14 +0000271- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
272 encoding.
273
Thomas Heller465c8022009-02-10 18:59:04 +0000274- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
275 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
276
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000277- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
278 under NT and OS2. Patch by Philip Jenvey.
279
Brett Cannonbefb14f2009-02-10 02:10:16 +0000280- Issue #5128: Make compileall properly inspect bytecode to determine if needs
281 to be recreated. This avoids a timing hole thanks to the old reliance on the
282 ctime of the files involved.
283
Guilherme Polob681df42009-02-09 22:33:59 +0000284- Issue #5122: Synchronize tk load failure check to prevent a potential
285 deadlock.
286
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000287- Issue #1818: collections.namedtuple() now supports a keyword argument
288 'rename' which lets invalid fieldnames be automatically converted to
289 positional names in the form, _1, _2, ...
290
Guilherme Poloae098992009-02-09 16:44:24 +0000291- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
292
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000293- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
294 public documented method ``ZipImporter.get_filename()``.
295
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000296- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
297 the execution of packages by looking for and executing a ``__main__``
298 submodule when a package name is supplied. Initial patch by Andi
299 Vajda.
300
Guilherme Polo491aee22009-02-06 23:16:11 +0000301- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
302 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
303 Tkapp_Call when calling from a thread different than the one that created
304 the Tcl interpreter. Patch by Robert Hancock.
305
Eric Smith0e5b5622009-02-06 01:32:42 +0000306- Issue #4285: Change sys.version_info to be a named tuple. Patch by
307 Ross Light.
308
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000309- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000310 environment/Makefile. Patch by Douglas Greiman.
311
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000312- Issue #1276768: The verbose option was not used in the code of
313 distutils.file_util and distutils.dir_util.
314
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000315- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000316 --enabled-shared activated. Initial patch by Dave Peterson.
317
Guilherme Polo7f423952009-02-02 21:17:09 +0000318- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
319
Raymond Hettinger85602262009-02-03 04:19:10 +0000320- The shelve module now defaults to pickle protocol 3.
321
Brett Cannone61426e2009-01-30 01:31:34 +0000322- Fix a bug in the trace module where a bytes object from co_lnotab had its
323 items being passed through ord().
324
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000325- Issue #2047: shutil.move() could believe that its destination path was
326 inside its source path if it began with the same letters (e.g. "src" vs.
327 "src.new").
328
Guilherme Polo5f238482009-01-28 14:41:10 +0000329- Added the ttk module. See issue #2983: Ttk support for Tkinter.
330
Raymond Hettinger89e12962009-01-26 02:09:03 +0000331- Removed isSequenceType(), isMappingType, and isNumberType() from the
332 operator module; use the abstract base classes instead. Also removed
333 the repeat() function; use mul() instead.
334
Raymond Hettinger0f055172009-01-27 10:06:09 +0000335- Issue 5021: doctest.testfile() did not create __name__ and
336 collections.namedtuple() relied on __name__ being defined.
337
338- Backport importlib from Python 3.1. Only the import_module() function has
339 been backported to help facilitate transitions from 2.7 to 3.1.
340
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000341- Issue #1885: distutils. When running sdist with --formats=tar,gztar
342 the tar file was overriden by the gztar one.
343
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000344- Issue #4863: distutils.mwerkscompiler has been removed.
345
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000346- Added a new itertools functions: combinations_with_replacement()
347 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000348
Raymond Hettinger30729212009-02-12 06:28:27 +0000349- Issue 5032: added a step argument to itertools.count() and
350 allowed non-integer arguments.
351
Jesse Noller41faa542009-01-25 03:45:53 +0000352- Fix and properly document the multiprocessing module's logging
353 support, expose the internal levels and provide proper usage
354 examples.
355
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000356- Issue #1672332: fix unpickling of subnormal floats, which was
357 producing a ValueError on some platforms.
358
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000359- Issue #3881: Help Tcl to load even when started through the
360 unreadable local symlink to "Program Files" on Vista.
361
Martin v. Löwis59e47792009-01-24 14:10:07 +0000362- Issue #4710: Extract directories properly in the zipfile module;
363 allow adding directories to a zipfile.
364
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000365- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000366 --without-threads argument. When this occurs, _multiprocessing will
367 be disabled, and not compiled.
368
Antoine Pitrou08838b62009-01-21 00:55:13 +0000369- Issue #5008: When a file is opened in append mode with the new IO library,
370 do an explicit seek to the end of file (so that e.g. tell() returns the
371 file size rather than 0). This is consistent with the behaviour of the
372 traditional 2.x file object.
373
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000374- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
375 parameter was set.
376
Mark Dickinson8dd05142009-01-20 20:43:58 +0000377- Issue #4842: Always append a trailing 'L' when pickling longs using
378 pickle protocol 0. When reading, the 'L' is optional.
379
Brett Cannonafccd632009-01-20 02:21:27 +0000380- Add the importlib package.
381
Jesse Noller9a0fc972009-01-18 21:12:58 +0000382- Issue #4301: Patch the logging module to add processName support, remove
383 _check_logger_class from multiprocessing.
384
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000385- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000386 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000387
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000388- Issue #4959: inspect.formatargspec now works for keyword only arguments
389 without defaults.
390
Jesse Noller6214edd2009-01-19 16:23:53 +0000391- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
392 for *nix machines for negative handles and large int handles. Without this check
393 it is possible to segfault the interpreter.
394
Jesse Nollerb0516a62009-01-18 03:11:38 +0000395- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
396 in sharedctypes.py.
397
398- Issue #1225107: inspect.isclass() returned True for instances with a custom
399 __getattr__.
400
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000401- Issue #3826 and #4791: The socket module now closes the underlying socket
402 appropriately when it is being used via socket.makefile() objects
403 rather than delaying the close by waiting for garbage collection to do it.
404
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000405- Issue #1696199: Add collections.Counter() for rapid and convenient
406 counting.
407
Antoine Pitrou308705e2009-01-10 16:22:51 +0000408- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
409
Thomas Heller5e4e4272009-01-08 09:34:20 +0000410- Issue #4867: Fixed a crash in ctypes when passing a string to a
411 function without defining argtypes.
412
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000413- Issue #4272: Add an optional argument to the GzipFile constructor to override
414 the timestamp in the gzip stream. The default value remains the current time.
415 The information can be used by e.g. gunzip when decompressing. Patch by
416 Jacques Frechet.
417
Mark Dickinson315a20a2009-01-04 21:34:18 +0000418- Restore Python 2.3 compatibility for decimal.py.
419
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000420- Issue #3638: Remove functions from _tkinter module level that depend on
421 TkappObject to work with multiple threads.
422
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000423- Issue #4718: Adapt the wsgiref package so that it actually works with
424 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000425 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
426
Raymond Hettinger771ed762009-01-03 19:20:32 +0000427- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
428 to the decimal module.
429
Georg Brandl3a9b0622009-01-03 22:07:57 +0000430- Fractions.from_float() no longer loses precision for integers too big to
431 cast as floats.
432
Mark Dickinsonf9236412009-01-02 23:23:21 +0000433- Issue #4812: add missing underscore prefix to some internal-use-only
434 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
435
Georg Brandl3a9b0622009-01-03 22:07:57 +0000436- Issue 4790: The nsmallest() and nlargest() functions in the heapq module
437 did unnecessary work in the common case where no key function was specified.
438
Georg Brandlb1441c72009-01-03 22:33:39 +0000439- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
440 the function is not a generator.
441
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000442- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
443 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000444
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000445- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000446 function. Original patch by Thomas Heller.
447
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000448- Issue #3767: Convert Tk object to string in tkColorChooser.
449
Martin v. Löwise354d782008-12-29 16:03:04 +0000450- Issue #3248: Allow placing ScrolledText in a PanedWindow.
451
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000452- Issue #4444: Allow assertRaises() to be used as a context handler, so that
453 the code under test can be written inline if more practical.
454
Georg Brandldb7b6b92009-01-01 15:53:14 +0000455- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
456 works as expected in the interactive environment.
457
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000458- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
459 Gabriel Genellina.
460
Antoine Pitrou180a3362008-12-14 16:36:46 +0000461- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
462 boundary.
463
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000464- Issue #4223: inspect.getsource() will now correctly display source code
465 for packages loaded via zipimport (or any other conformant PEP 302
466 loader). Original patch by Alexander Belopolsky.
467
468- Issue #4201: pdb can now access and display source code loaded via
469 zipimport (or any other conformant PEP 302 loader). Original patch by
470 Alexander Belopolsky.
471
472- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
473 302 conformant loader) will now work correctly in most cases (they
474 are still subject to the constraints that exist for all code running
475 from inside a module loaded via a PEP 302 loader and attempting to
476 perform IO operations based on __file__). Original patch by
477 Alexander Belopolsky.
478
479- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
480 allows backporting to maintenance branches. Original patch by
481 Alexander Belopolsky.
482
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000483- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
484 a non-ASCII letter.
485
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000486- Issue #4616: TarFile.utime(): Restore directory times on Windows.
487
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000488- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
489 codec cannot be found. This is for compatibility with the builtin behavior.
490
Facundo Batista708d5812008-12-11 04:20:07 +0000491- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
492 give correct results in the case where one argument is a quiet NaN
493 and the other is a finite number that requires rounding.
494
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000495- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
496 libs.
497
Georg Brandlf9734072008-12-07 15:30:06 +0000498- Added the subprocess.check_call_output() convenience function to get output
499 from a subprocess on success or raise an exception on error.
500
501- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
502 support unusual filenames (such as those containing semi-colons) in
503 Content-Disposition headers.
504
505- Issue #4384: Added logging integration with warnings module using
506 captureWarnings(). This change includes a NullHandler which does nothing;
507 it will be of use to library developers who want to avoid the "No handlers
508 could be found for logger XXX" message which can appear if the library user
509 doesn't configure logging.
510
511- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
512 exception.
513
Georg Brandleee31162008-12-07 15:15:22 +0000514- Issue #4529: fix the parser module's validation of try-except-finally
515 statements.
516
517- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
518 not a malformed option.
519
520- Added the subprocess.check_output() convenience function to get output
521 from a subprocess on success or raise an exception on error.
522
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000523- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
524 the corresponding tests now pass.
525
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000526- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
527 it was calling the wrong open() function.
528
Fred Drake9a0a65b2008-12-04 19:24:50 +0000529- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
530 support unusual filenames (such as those containing semi-colons) in
531 Content-Disposition headers.
532
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000533- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
534 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
535
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000536- Issue #5104: The socket module now raises OverflowError when 16-bit port and
537 protocol numbers are supplied outside the allowed 0-65536 range on bind()
538 and getservbyport().
539
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000540Tools/Demos
541-----------
542
Antoine Pitrou8a681222009-02-07 17:13:31 +0000543- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
544 and make it 2.6-compatible.
545
Guilherme Poloa7d27972009-01-28 16:06:51 +0000546- Ttk demos added in Demo/tkinter/ttk/
547
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000548- Issue #4677: add two list comprehension tests to pybench.
549
Georg Brandlb1441c72009-01-03 22:33:39 +0000550
551Build
552-----
553
Matthias Klose906785c2009-02-22 23:18:38 +0000554- Link the shared python library with $(MODLIBS).
555
Martin v. Löwis11f72102009-02-10 13:13:30 +0000556- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
557
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000558- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
559
Martin v. Löwise97637d2009-01-11 09:45:11 +0000560- Issue #4895: Use _strdup on Windows CE.
561
Georg Brandlb1441c72009-01-03 22:33:39 +0000562- Issue #4472: "configure --enable-shared" now works on OSX
563
564- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
565
566- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
567
568- Issue #4289: Remove Cancel button from AdvancedDlg.
569
570- Issue #1656675: Register a drop handler for .py* files on Windows.
571
572- Issue #4120: Exclude manifest from extension modules in VS2008.
573
574- Issue #4091: Install pythonxy.dll in system32 again.
575
576- Issue #4018: Disable "for me" installations on Vista.
577
578- Issue #3758: Add ``patchcheck`` build target to .PHONY.
579
580- Issue #4204: Fixed module build errors on FreeBSD 4.
581
582
583C-API
584-----
585
Mark Dickinson21776072009-02-10 16:13:25 +0000586- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
587 for negative arguments. Previously, it raised TypeError.
588
Georg Brandlb1441c72009-01-03 22:33:39 +0000589- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
590
591- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
592 the GIL is released, or owned by another thread.
593
594- Issue #4122: On Windows, fix a compilation error when using the
595 Py_UNICODE_ISSPACE macro in an extension module.
596
597
Mark Dickinsone675f082008-12-11 21:56:00 +0000598Extension Modules
599-----------------
600
Gregory P. Smith365a1862009-02-12 07:35:29 +0000601- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
602 supporting objects as input no matter how it was compiled (built in
603 implementations or external openssl library).
604
Mark Dickinson29500f62009-01-15 15:36:10 +0000605- Issue #4397: Fix occasional test_socket failure on OS X.
606
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000607- Issue #4279: Fix build of parsermodule under Cygwin.
608
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000609- Issue #4751: hashlib now releases the GIL when hashing large buffers
610 (with a hardwired threshold of 2048 bytes), allowing better parallelization
611 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
612
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000613- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
614
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000615- Issue #4738: Each zlib object now has a separate lock, allowing to compress
616 or decompress several streams at once on multi-CPU systems. Also, the GIL
617 is now released when computing the CRC of a large buffer. Patch by ebfe.
618
Georg Brandlb1441c72009-01-03 22:33:39 +0000619- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
620
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000621- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
622
Mark Dickinsone675f082008-12-11 21:56:00 +0000623- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
624 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000625
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000626- Issue #4583: array.array would not always prohibit resizing when a buffer
627 has been exported, resulting in an interpreter crash when accessing the
628 buffer.
629
Martin v. Löwis841edad2008-11-30 10:36:49 +0000630
Guilherme Polo9de29af2009-01-28 20:40:48 +0000631Tests
632-----
633
634- Issue #5083: New 'gui' resource for regrtest.
635
636
Brett Cannon7317c1e2008-11-25 19:19:17 +0000637Docs
638----
639
Georg Brandl52b92cc2008-05-25 09:43:03 +0000640
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000641**(For information about older versions, consult the HISTORY file.)**